A 47-year-old woman in Washington state has been sentenced to 16 years in prison for raping her 8-year-old daughter adopted from China.

Donna Marie Whisenhunt, of Lacey, pleaded guilty to child rape as part of a plea agreement. She was sentenced Thursday in Pierce County Superior Court in Tacoma.

Her husband, 51-year-old Eddy Tony Whisenhunt, also pleaded guilty and was sentenced last month to 18 years in prison.

The News Tribune of Tacoma reports the couple were arrested in May after their daughter talked to a school counselor. She had been adopted shortly after her birth in China, and police say the abuse occurred over a four-year period.

Deputy prosecutor John Skinder says Child Protective Services placed the girl in a new home where she is thriving.